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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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S
DALL-E 3
B
HeyGen
S
Le Chat (Mistral)
B
TaglineRun any open-source AI model with an API call.OpenAI's image model. Built into ChatGPT Plus.AI avatar videos. Record once, speak any language.French alternative. Fast, European, privacy-focused.
CategoryDev PlatformImageVideoChatbots
PricingPay per second of computeIncluded with ChatGPT Plus $20/moFree + $24-$65/moFree + $15/mo Pro
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).ChatGPT Plus users who want images without paying extra.Course creators, multilingual marketers, anyone scaling video content.European users with data residency needs. Fans of open-weight models.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Clone your face + voice in 2 minutes
  • Instant translation into 40+ languages with lip sync
  • Avatars look less uncanny than competitors
  • European data residency
  • Very fast responses
  • Open-weight Mistral models available
  • Good French/European languages
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Pricey for serious volume
  • Long shots still feel off
  • Ethics — easy to misuse
  • Smaller capability gap vs frontier models
  • Less polished UX
Kai's verdictS-tier for open-source model APIs. The default in this space.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.B-tier overall, A-tier if GDPR/data residency matters. Solid backup option.
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